chore: url parse replaced by native url + multiple fixes and rewrites

[cloudinary-pkoniu]

Brief Summary of Changes

Multiple fixes/rewrites in a single PR:

• chore: url parsing done via native url package
• fix: unhandled promise rejection caused by removal of Q
• fix: hanging socket connections are closed properly by ensuring that a response is consumed
• fix: jsdom-global overwriting globally available url package
• chore: mocha always exists even if connections are hanging

What Does This PR Address?

• GitHub issue (Add reference - Possible Deprecation Warning from url.parse() when using Cloudinary in Next.js #726)
• Refactoring
• New feature
• Bug fix
• Adds more tests

Are Tests Included?

• Yes
• No

Reviewer, Please Note:

[pawelphilipczyk-cloudinary]

Looks good, I've added some non blocking (in my opinion) comments